if (domains == null) {
            return false;
        }
        domain = domain.toLowerCase();
        return domains.get(domain) != null;
    }

    /**
     * Gets a domain controller transport for the specified domain
     * @param domain the domain name
     * @param auth the authentication credentials
     * @return an SMB transport to the domain controller

    @Test
    @DisplayName("Test constructor with domain and server types")
    void testConstructor() {
        String domain = "WORKGROUP";
        int serverTypes = NetServerEnum2.SV_TYPE_ALL;

        netServerEnum2 = new NetServerEnum2(realConfig, domain, serverTypes);

        assertNotNull(netServerEnum2);
        assertEquals(domain, getFieldValue(netServerEnum2, "domain"));

      return domain.minValue();
    }

    @Override
    Comparable<?> greatestValueBelow(DiscreteDomain<Comparable<?>> domain) {
      throw new AssertionError();
    }

    @Override
    Cut<Comparable<?>> canonical(DiscreteDomain<Comparable<?>> domain) {
      try {
        return Cut.belowValue(domain.minValue());
      } catch (NoSuchElementException e) {

        }
    }

    // Test constructor with domain, username, and password
    @Test
    void testConstructorWithDomainUsernamePassword() {
        NtlmPasswordAuthentication auth = new NtlmPasswordAuthentication("DOMAIN", "user", "password");
        assertEquals("DOMAIN", auth.getDomain());
        assertEquals("user", auth.getUsername());

        synchronized (this.domainsLock) {
            final Map<String, Map<String, CacheEntry<DfsReferralDataInternal>>> domains = getTrustedDomains(tf);
            if (domains == null) {
                return false;
            }
            domain = domain.toLowerCase(Locale.ROOT);
            return domains.get(domain) != null;
        }
    }

                if (ci > 0) {
                    domain = username.substring(0, ci);
                    username = username.substring(ci + 1);
                }
            }
        }

        this.domain = domain;
        this.username = username;
        this.password = password;

        initDefaults();

        if (domain == null) {
            this.domain = DEFAULT_DOMAIN;
        }

    }

    /**
     * Returns the domain in which the user has an account.
     *
     * @return A <code>String</code> containing the domain for the user.
     */
    public String getDomain() {
        return domain;
    }

    /**
     * Sets the domain for this message.
     *
     * @param domain The domain.
     */
    public void setDomain(final String domain) {
        this.domain = domain;
    }

    }

    @ParameterizedTest
    @MethodSource("domains")
    @DisplayName("getUserDomain handles null and empty")
    void getUserDomain_edges(String domain) {
        TestCredentials creds = new TestCredentials(domain, false, false, new Subject(), false);
        assertEquals(domain, creds.getUserDomain());
    }

    static Stream<String> domains() {
        return Stream.of(null, "", "SALES");
    }

#### MINIO_DOMAIN

This is the top level domain name used for the federated setup. This domain name should ideally resolve to a load-balancer
running in front of all the federated MinIO instances. The domain name is used to create sub domain entries to etcd. For
example, if the domain is set to `domain.com`, the buckets `bucket1`, `bucket2` will be accessible as `bucket1.domain.com`
and `bucket2.domain.com`.

#### MINIO_PUBLIC_IPS

            // Default constructor
        }

        /** Domain NetBIOS name. */
        public rpc.unicode_string name;
        /** DNS domain name. */
        public rpc.unicode_string dns_domain;
        /** DNS forest name. */
        public rpc.unicode_string dns_forest;
        /** Domain GUID. */
        public rpc.uuid_t domain_guid;
        /** Domain security identifier. */
        public rpc.sid_t sid;